Cancelling on campus housing

Hi all ,I’ll enter UB as a freshman this year. When I applied to University At Buffalo through common app I selected "on campus housing " but as my family is moving to buffalo so I changed my mind and I don’t wanna live on campus anymore. Today I received the smart track award letter which showed the estimated cost of attendance including the dorm and tuition fees. So does that mean my fafsa already covered the housing cost and tuition?? If so is there any way to cancel the on campus housing and get the refund because if fafsa cover the housing cost then I’ve to pay the rest of the money and I can’t afford to pay the rest of the money which is $14k something. Can anyone help please? ( Forgot to mention I didn’t deposit for housing yet )

I would suggest contacting the UB Financial Aid Office ASAP for guidance.